Lock.



Patented May 20, |902.

G. T. ROBERT-S.

LOCK.

(Application led Jan. 13, 1902?.)

2 Sheets-Sheet l.

(Nd Model.)

VTHE Norms PETERS co. PHoTo-LITNQ., wus-nNGTON4 DA c.

No. 700,242. Patented May 2o, |902.,

G.- T. ROBERTS.

LOCK.

(Application filed Jan. 13, 1902.

(No Model.) 2 Shee's-Shee-2` T'H: N oanls PEfERs cu.. wom-Limo..wAsHxNGTaN, oft.

UNrrnn STATES PATENT OFFICE.

GUY TYLER ROBE-RTS., OF CORONADO BA'CH, CALIFORNIA;

L ocK.

sPEcIrrcn'r-rolv forming part of Letters Patent No.V voognajdaxeci My'a,1902ii Application filed January 13, 1902. Serial No. 89,541. (Nomodel.) i A ATo all whom it may concern."

Be it known that I, GUY TYLER ROBERTS, a'

nado Beach, in the county of San Diego and State of California, haveinvented a new and useful Lock, of which the following isa speci.-lcation'. u

My invention relates to certain improvements in combination-locks, andhas for its principal object to provide a lock of simple and economicalconstruction in which the combination may be readily changed at anytime. .i

A ,further object is to provide for the locking of the bolt withoutsubjecting any of the combination members to strain.

Further vobjects and advantages of the invention will be apparent from areading of the following description. l

In the accompanying drawings, Figure 1 'is' a perspective view of acombination-lock constructed and arranged in accordance with myinvention. Fig 2.is .an elevation of the same, partly'in section, theouter side of the casing being removed in order to more clearlyillustrate the construction. Fig. 3 is a transverse sectional elevationof the lock on the line 3 3 of Fig. 2. Fig. ,4 is a detail sectionalelevation of the removable casing containing the Vmovable membersof thelcombination. Y

Fig. 5 is a sectional planview of the lock on the line 5 5 of Fig. 2.Fig. 6 is a detail perspective view of the casing of the lock, one ofthe sides being removed. Fig. 7 is a detail perspective View of thecasinglfor carry.- ing the combination-dogs and their connected.operating devices.v Figs. 8, 9, 10, and 1.1 are detailviews of portionsof the mechanism rei-k' ferred to more'specifically hereinafter. Fig.`

12 is a detail view of one of the combinationdogs.

` Similar'numerals of reference are employed to designate .correspondingparts 'throughouty `'four or live. change each dog sothat it willrequire Afrom 14, in which are placed dog-:carrying frames v 15, each ofwhich is adapted to receive a combination-dog 16, there being as manyguidin g-slots and dogs as may be required to form the desiredcombination.

In the vpresent instance I employ four combination-dogs for afour-number combination, and each dog is adjustable, so thattheJcombination may be changed to any possible combination tov the v anotch which-may be broughtinto alinement with the locking-slotbymanipulating the' iinger-pieceflS of its carrying-frame. The notches inthe locking-,dogs are designated, respectively, 20, 2l, 22, and 23, andeach is arranged at a different distance in the length 7 of the sidesofthe dogs. The position of the notches may be best described byassuming the dog to be about nine linches square and divided by linesplaced at equidistant intervals throughout vits surface and dividj ingthevdoginto a number o'flines, of which there would'be eight at eachedge ot' the dog. Thenotch ,2O would then be formed at the rstdivisional line,` so that in one position' with respect to the `-s101316it would have a value of one and in the reverse position a value ofeight. j The slot-21 on another'edge of the dog would be sosituated asto have a value either two or seven. The third notch, 22, would be soplaced as to have a value'of three or six, and the remaining notch, 23,would beY so situated as to have a value ot' In this manner it ispossible to one to eight movements of the carrying-frame tobring it toposition in alinement with the locking-slot. I y f The upper portion ofthe casingv12 isformed of three metallic plates 24; 25," and 26,secu-red together at their upperends vand spaced rfor a distancesufficient to permit the entrance of the finger-pieces 18 and the upperportions of the dog-carrying lframes, two of suchnger-pieces and framesbeing disposed in each `of the-spaces formed by the plates, thefinger-pieces projecting laterally beyond said IOO tion. The two outerplates 24 and 2G extend from the top of the lower portion 12 of thecasing to the upper point of connection,while the central plate 25terminates at a point some distance above the top of the lower portion12 in order to form a space, as indicated at 27 in Fig. 4, to permit thebending of the upper portions of the dog-carrying frames, which areguided between the plates 25 and 20. The plate 26 is perfectly plain;but in each of the plates 24 and 25 there are formed two zigzag slots 2Sof the construction best illustrated in Figs. 1 and 3, and into theseslots project small pins 29, carried by the finger-pieces 18. The wallsof the slots are rectangular, so that abrupt square shoulders may beformed to retain the pins 29 in any position to which they may beadjusted, and in operation the finger-pieces are moved to and fro totravel the pins in their respective slots, and so move thecombination-dog to the desired positions, and, if desired, suitableindicating-marks may be placed along the plates to indicate the properposition of the combination-dogs.

Projecting from the lower portion of the lock-casing 10 is a sleeve orcasing 31, in which is guided a longitudinally-movable lockingbolt 32,the inner end of which projects within the lock-casing and is providedwith two transversely-disposed locking-notches 33 and 34, in either ofwhich an arm 35 will engage to hold the bolt firmly in locking o runlocking position. The slot 33, in which the arm engages when the boltis in locking position, is comparatively narrow and is so arranged withrespect to the longitudinal movement of the boltas to assume a positionin alinement with the inner wall of the easing, so that on the entranceof the locking-arm the latter will serve to lock the bolt tothe insideof the casing, thus avoiding any injurious straining on the arm shouldit be attempted to force l casing 12 and serves to lock the same inposition when the bolt is in locking position.

Pivoted on a stud 40 in the upper portion ot the casing are two arms 41and 42, con` nected by a cro`ss-brace 43, the outer end of the arm 41being secured to or formed integral with a U-shaped rod 44, one end ofwhich extends down within the casing at a point between the wall and thecylinderor casing 12 and the opposite end being disposed outside thecasing and provided. with a finger-piece either elevated or depressedposition. lower endofthev arm 42 tits within a small longitudinal slot4f), formed on the upper face ot the bolt member32,.so that when thecombination members have been moved to nnlocking position the bolt maybe reciprocated by manipulating the finger-piece 45.

Pivoted on a stud 50 is a latch member 51, having at its upper end alatch-bar 52 of a Width equal to that of the cylinder or casing 12 andadapted when the combination-dogs have been moved into proper positionto enter the slot 1G', the bar first passing through a suitable slot oropening 53, formed in the partition 11 in alinement with thecylinderslot.. The locking-arm 35, which has been previously described,is also secured to the stud 50 and moves with the latch, so that whenthe combination-dogs have been moved in such manner as to present theirnotches in alinement with the notch 1G the latch-bar may enter under theinfluence of a suitable spring 55 and move the locking-arm from positionin the groove of the bolt. The latchbar is moved out from thecylinder-notch and the locking-arm is moved into the bolt-groove by alug or finger 56, carried by and projecting from the end of the bolt andadapted to come into contact with'the lower end of the latch as the boltis moved to the locking position. The bolt may also be locked or held inthe unlocked position by causing the lock ing-arm to move into thesecond groove 34, this being effected by providing the latch with a link57, the outer end of which passes through an eye 53 on the lower portionofthe arm 42, the parts being `so constructed that when vthe ingerpiece45 is pulled down and the arm 42 is moved to project the bolt the eye 53on the lower end of said arm will come into contact with the enlargedhead of the link, pulling the latch-bar from engagement IOO with thecylinder-slot and at the same time forcing the locking-arm intoengagement with the groove 34. This movement permits of the withdrawalof the combination cylinder or casing for the purpose of changing thecombination, the latter being readily altered by removing one or more ofthe dogs and changing their positions in order to bring a differentnotch in alinement with the casing-slot. The bolt may be held in the outor unlocked position by engaging the catch'46 of the finger-piece underlthe lug 4S on the casing.

In order to prevent injury to the latch in event of any attempt toremove the combination-casing while the device is locked, the latch isalways held out of engagement with the locking-slot by the footpiece 5Gof the bolt, and the cylinder is confined in place by the locking-arm 37engaging witlrthe lug 38, as previously described. As there is somedanger of bending the arm 37 during the attempt to remove the casing, Iprovide on the inner face of the casing a lug GO, which engages with theupper edge ofthe arm and prevents any upward movement of the same. Thelugs 38 and GO are arranged in different vertical planes, so that therewill be no interference when the casing is withdrawn after the arm 37has been first moved to unlocked IIO IIS

position. On the side of the removable casingis formed a lug or shoulder61 to fill the space not occupied by the arm 44, sufficient space beingleft for the free movement of said arm, so that the bolt can be readilymoved.

The lock forming the subject of the present invention may be employedfor any purpose, and the bolt 32 may bev connected or serve as aconnection between any parts which it is desired to lock together; butin the preferred form of the device I employ the bolt as a means formoving a locking-arm to open and close positions.

Secured to or formed integral with the outer end of the sleeve 31 is acasing 7l, in one end of which is secured a curved arm 72, terminatingat its opposite end in apocket-piece or keeper 73, the inner Walls ofthe latter being provided with any desiredA number of grooves 74each ofa width adapted to receive the head 75 of the-movable arm 70. Therelative diameters of the interior of the keeper and the head 75 aresuchthat should any attempt be madeto force the arms-apart the slightestlateralzmovement will cause the head to engage in oneor other oftheslots, and thus lock the two'parts -firmly together, andl the head ofthe keeper may be round, square, or of other form best suited for thelpurpose. The arm 70 .ispivoted Within the casing 71 on a suitable pin 75,v and its extreme inner end is slightly reduced in diameter andadapted.

to fit Within a suitable opening orfrecess 76, formed in the louter endofthe locking-bolt, and themovement of the locking-bolt serving tooscillate thejarm 70 on its pi'votpinthe two 'armsseparating for 'anextent suicient to permit the entrance of an article to be locked. 4- 1l The device isespecially adapted for use as a bicycle-lock, theytwoarms70 and 72 being l locked around the tire andzfelly of oneof the wheelsor other moving parts of the machine and the casing being provided withaA suit able clamp 78, by which the lock ,may be secured at a convenientpoint on the frame of the machine. -1 e While the construction hereindescribed and illustrated in the accompany-ingdrawings isfthepreferredform ofthe device, itis obvious that many changes in theform,pro

portion, size, and minordetails of construction maybe made VWithoutdeparting from the spirit or sacrificing any of theadvantages of myinvention. e

Having thus described myinvention, what I claim isf I y 1.Y In a lock, aplurality of interchangeable dogs having notches, a bolt-controllinglatchl adapted to enter the same, and means for independently operatingsaid dogs to move them into locking and unlocking positions, said dogsbeing removably supported by said operating means. l

2. In a lock, a pluralityof reversible combination-dogs having notches,a bolt-controlling latch adapted to enter the same and sible polygonalplate having on each of its edges a single notch arranged in suchrelation that a notch representing any desired numeral l may be adjusted for cooperation with the boltcontrolling mechanism, andl mechanismfor supporting and adjusting said plate.

5. In a lock, a plurality of combination. y

dogs, carrying-frames therefor, ugerfpieces A secured to -each of saidframes,and means for holding said framesin any position to whichthey maybe adjusted. 6. Ina lock, a plurality of combinationdogs,carrying-frames therefor, finger-pieces secured to said -carryingframes,guidingplates having shouldered slots, andrpins carried by the framesand adapted to said slots.

7. In a look,a plurality of combination,- dogs,boltcontrolling mechanismadaptedy to cooperate therewith, a series of carrying. frames for saiddogs, finger-pieces andpins.

carried` by said frames, and guiding-plates having zigzag slots for thereception of said pins.

8..V In a lock, plurality of combination-A dogs, bolt-controlling,mechanism ,adapted to i cooperate therewith, carrying-frames for saidfoo'.

dogs, linger-pieces and pins carried .by said therein, a bolt, aremovable casing extendingV Within the vmain casing, meansfor locking,frames and guiding-plates having slots for. thereception of said pins,each of said slots` being arrangedto form-aseries ofseating-rev cessesfor, the pins, substantially as specified.

said removable casing within the lock-casing Whenthe Abolt isin lockingposition, a series f of combination-dogs yguided by. said remov' `ablecasing and cooperating with the bolt-- controlling mechanism, and meansfor oper-A.

ating saiddogs. l i

10. lIn'a lock, the combination ofthe lockcasing, bolt-controllingmechanism arranged therein, a bolt, a removable casing extending Withinthemain casing-means for lockingsaid removable casing .withinthelock-,casing when the bolt is ill/locking position, afpluralityofcombination-dogs guided by said re` movable oasingnand coperatingwiththe boltcontrolling mechanism, carryingframes .carriedby. 4the removablecasing and supporting said dogs,slotted guiding-plates.arranged aboveandremovable Withtherremovable oas ing, and finger-pieces secured to thecarrying frames, said. carrying-.frames `havingpinsfor engagement in theslots of the guiding-plates. r

1l. In ailock, thecombinationofthelockr i casing, a bolt andbolt-controlling mechanism arranged therein, a removable casing carriedby the lock-casing, a series of partitions arranged in said cylinder andhaving alining notches for the reception of an element of thebolt-controlling mechanism, combinationdogs arranged within the spacesbetween the partitions, an independent carrying-frame for eachof saiddogs, finger-pieces carried by said frames, projecting pins extendingfrom said frame, slotted guiding-plates arranged on the upper portion ofthe removable casing, the pins being adapted to enter said slots and belocked therein in an adj usted position.

12. In a lock, the combination of the lockcasing, a partition thereindividing said lockcasing into two compartments, a bolt andbolt-controlling mechanism disposed in one of said compartments, aremovable casin g having a projecting lug or boss, a locking-fingercarried by the bolt for engagement therewith, a series of locking-dogscarried by the removable casing and means for independently adjustingsaid dogs, substantially as specified.

13. In a lock, the combination with a bolt, of means for effecting thelongitudinal movement of the same, a locking-arm adapted to engage withand hold the bolt at both extremes of movement, a latch secured to andmovable with the locking-arm, a combinationcontrolled device forpermitting the movement of the latch and arm to unlocking position, andmeans controlled by the bolt for moving said latch out of contact withthe combination-controlled device when the bolt is moved to locked andunlocked position.

14:. In a lock, the combination with a man nally-operated bolt, of acombination device comprising a series of movable elements each having anotch, a latch adapted to move into the series of notches when thelatter are in alinement, a locking-arm operably controlledv by the latchfor locking said bolt at both extremes of movement, and means controlledby the bolt and its connected parts for moving said latch away from thenotches when the bolt is moved to locking or unlocking position.

15. The combination with a manually-operated bolt having a locking-slot,of a combination device comprisinga series of movable elements eachhaving a notch, a pivoted latch independent of the bolt and adapted tomove into the series of notches when the latter are in alinement, alocking-arm operatively connected to the latch and movable therewith tounlock the bolt, and an engaging finger carried by said bolt and adaptedto engage with thelatch to move the locking-arm into engagement with thelocking-slot ot' said bolt, substantially as specified.

16. In a lock, the combination with a movable bolt having a pair oflocking slots or notches, a lockingarm adapted to engage therewith, acombination device comprising a series of movable elements each having anotch, a pivoted latch carrying the lockingarm and adapted to move intothe series of notches when the latter are in alinement, a pivoted leverconnected to the bolt, and a link connecting said lever to the latch andadapted to move the latter from the notches and to force the locking-arminto engagement with the bolt when the latter is moved to unlockingposition.

17. In a lock, the combination with a movable bolt having a pair oflocking slots or notches, a locking-arm adapted to engage therewith, acombination device comprising a series ot' movable elements each-havinga notch, a pivoted latch carrying the lockingarm and adapted to moveinto the series of notches when the latter are in alinement, a springadapted to operate on said latch, a pivoted lever connected to the bolt,a secondary lever connected to and movable with said pivoted lever, aU-shaped arm extending from the secondary lever to a point outside thelock-casing, a linger-piece arranged at the end of said arm,holding-lugs for said fingerpiece, a link connecting the pivoted leverto the latch andadapted to move the same from the notches and to forcethe locking-arm into engagement with the bolt when the latter is movedto unlocking position, and a finger carried by the bolt and also adaptedto operate on said pivoted latch, substantially as specied.

18. In a lock the combination of the lockcasing, a bolt andbolt-operating mechanism contained therein, a removable casing carriedby the lock-casing and containing a combination device adapted tocoperate with the bolt-controlling mechanism, lugs formed on theadjacent faces of the removable casing and lock-casing, and a lockingarm or finger carried by the bolt and adapted to pass between said lugs.

19. In a device of the class specified, a grooved keeper, a bolt adaptedthereto, means for operating said bolt, the engaging end of the boltbeing provided with a head or tip of a width less than the width of thegrooves of the keeper.

20. In a device of the class specified, a stationary semicircular memberhaving a'keepcr at its outer end, a lock-casing carrying said member, abolt adapted to the casing, means for moving the bolt, a movablesemicircnlar member pivoted to the lock-casing and in engagement withthe bolt, the opposite end of said movable member being adapted toengage in the keeper of the stationary member.

In testimony that I claim the foregoing as my own I have hereto aiiixedmy signature in the presence of two witnesses.

GUY TYLER ROBERTS. fitnessesz WALTER M. EDwARDs, WILL H. HoLcoMn.

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